Improvement in buckets for chain-pumps



M. D. BENNETT.

Buckets for Chain-Pumps. No.149,977. PatentedApril2l,1874.

WITNESSES INVENTOR 4%;; d/m/w 49. 75mm ATTORNEYS.

ATT FFIGE.

MORRIS D. BENNETT, OF HORSEHEADS, NEW'YORK.

IMPROVEMENT IN BUCKETS FOR CHAIN-PUMPS.

Specification forming part of Letters Patent No. 149,977, dated April21, 1874; application filed March 28, 1874.

To all whom it may concern:

Be it known that I, MonRIs D. BENNETT, of Horseheads, in the county of(Jhemung and State of New York, have invented a new and valuableImprovement in Buckets for Chain-Pumps; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingsmaking a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawing is a representation of a side elevation of mybucket. Fig. 2 is a sectional view of the same, and Fig. 3 is a topplanview.

This invention has relation to buckets which are especially designed forchain-pumps and it consists in the combination, with a cup having a loopor link formed on it, of an adjustable convex looped portion, whereby anexpansible packing is obtained, as will be herein after more fullyexplained.

The following is a description of my invention:

In the annexed drawings, A represents a cup, which is hollow andhemispherical, and which has a loop or link, a, formed on its convexside. B designates a plane-convex plug, having a loop or link, I),formed on its bottom flat surface, and a screw-threaded stem, 0, formedon its upper convex side and in the center thereof. The screw-stem c isreceived through a threaded hole made through the center of the cup A,as shown in Fig. 2. O designates a packing, which is of larger diameterthan the diameter of the cup A, and which is preferably made ofindia-rnbbcr, although it may be made of any other suitable material.This packing O is circular in form, and it has a hole through its centerto receive through it the screw-stem c.

It will be seen from the above description that when the three parts A,B, and G are put together and screwed tightly, the circumference of thepacking C will be exposed evenly beyond the edge of 'the cup'A, and willbe directed downward. By turning the part B the packing O can beexpanded or contracted in its diameter and made to fit the bore of thepump-tube, and as the packing wears smaller from use it can be readilyexpanded to fit the tube-bore again.

WVhen the washer is worn until it is useless a new washer can besubstituted for it by simply unscrcwing the parts A B. The parts A B Imay be made of malleable iron and galvanized to prevent them fromrusting.

WVhat I claim as new, and desire to secure by Letters Patent, is

A pump-bucket for chain-pumps, consisting of the concave-convex upperportion A, having a loop or link, a, formed on it,in combination withthe plano-convex adjustable portion B, having a loop, I), and a screw,0, formed on it, substantially as described. v

In testimony that I claim the above I have hereunto subscribed my namein the pres ence of two witnesses.

I MORRIS D. BENNETT.

Witnesses O. BURCH, M. RICKEY.

